报502错误

[fyddaben]

我是这样写的

const io = require('./ws.js');
const news = io('wss://xxx.com/venice/v1/user/')

控制台报错

 WebSocket connection to 'wss://xxx.com/socket.io/?EIO=3&transport=websocket' failed: Error during WebSocket handshake: Unexpected response code: 502

[SkyGrass]

同样问题。请问怎么解决的？